GB1489407A - Hard board or medium density board and process for production thereof - Google Patents

Hard board or medium density board and process for production thereof

Info

Publication number
GB1489407A
GB1489407A GB48424/74A GB4842474A GB1489407A GB 1489407 A GB1489407 A GB 1489407A GB 48424/74 A GB48424/74 A GB 48424/74A GB 4842474 A GB4842474 A GB 4842474A GB 1489407 A GB1489407 A GB 1489407A
Authority
GB
United Kingdom
Prior art keywords
board
binder
wire
distributor
headbox
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB48424/74A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svenska Traforskningsinstitutet
Original Assignee
Svenska Traforskningsinstitutet
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Svenska Traforskningsinstitutet filed Critical Svenska Traforskningsinstitutet
Publication of GB1489407A publication Critical patent/GB1489407A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00Pretreatment of moulding material
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21JFIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00Fibreboard
    • D21J1/16Special fibreboard
    • D21J1/18Hardboard

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

1489407 Board manufacture SVENSKA TRAFORSKNINGSINSTITUTET 8 Nov 1974 [8 Nov 1973] 48424/74 Headings D2A and D2B A hard or medium density board prepared by a wet method and reinforced with a thermosetting binder has a central layer, which is 10-70% of the thickness of the board and has a set binder content of 1-15% by wt., and two surface layers on either side thereof, the binder content of the central layer being substantially higher than the binder content of the surface layers. The binder may be a phenol-formaldehyde, urea-formaldehyde, melamine, acrylic, or resorcinol resin, or a protein e.g. blood albumen. The binder may be added to the stock just before or after it flows out from the head box on to the wire of a board machine of the Fourdrinier type. The wet slab formed may be dewatered by suction boxes, wet pressed, sawed, pressed at elevated temperature, and heat-treated. Apparatus. A board making device for making such a board may comprise a headbox. Fourdrinier wire, and a distributor positioned transversely across the wire at the wet end of the device and adapted to distribute in use an aqueous form of the binder in a central layer of the pulp slurry which flows from within the headbox onto the wire, the outlet(s) from the distributor being immersed in the pulp slurry flow onto the wire and directed substantially in the flow direction of the pulp slurry. The distributor may be a pipe having one or more nozzles: or it may comprise an inner pipe having a slot surrounded by an outer pipe having a slot, the latter pipe being rotatable so as to bring the slots into or out of registration, (Fig. 4 not shown). The distributor may supply the binder to an additional headbox, which is immersed in the stock flow. (Figs. 5-8, not shown). A headbox provided with several vertically-separated discharge gates may also be used in the manufacture of the board.
GB48424/74A 1973-11-08 1974-11-08 Hard board or medium density board and process for production thereof Expired GB1489407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7315156A SE391759B (en) 1973-11-08 1973-11-08 METHOD AND DEVICE FOR MANUFACTURE OF A HARD OR SEMI-HARD FIBER SHEET

Publications (1)

Publication Number Publication Date
GB1489407A true GB1489407A (en) 1977-10-19

Family

ID=20319053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48424/74A Expired GB1489407A (en) 1973-11-08 1974-11-08 Hard board or medium density board and process for production thereof

Country Status (16)

Country Link
JP (1) JPS5812150B2 (en)
AT (1) AT351742B (en)
BR (1) BR7409379A (en)
CA (1) CA1122045A (en)
CH (1) CH586601A5 (en)
DE (1) DE2452170C2 (en)
DK (1) DK578074A (en)
ES (1) ES431732A1 (en)
FI (1) FI321974A (en)
FR (1) FR2250856B1 (en)
GB (1) GB1489407A (en)
IT (1) IT1025472B (en)
NL (1) NL7414523A (en)
NO (1) NO744019L (en)
SE (1) SE391759B (en)
ZA (1) ZA747154B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189571A1 (en) * 2008-11-20 2010-05-26 Nichiha Corporation Environmentally-friendly wet process type hard fiberboard
CN111648157A (en) * 2020-05-25 2020-09-11 潍坊汇胜绝缘技术有限公司 Production process of medium-density insulating paperboard

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168200A (en) * 1975-03-17 1979-09-18 Abitibi Paper Company Ltd. Method for controlling caliper and edge and corner delamination of hardboard
JPS602633U (en) * 1983-06-21 1985-01-10 東洋製罐株式会社 Container support handle
JPH0562437U (en) * 1992-02-04 1993-08-20 株式会社吉野工業所 Synthetic resin container with handle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970644A (en) * 1958-06-02 1961-02-07 Webster David Richan Liquid dispersion conduit
US3386879A (en) * 1965-03-09 1968-06-04 Abitibi Power & Paper Co Process for forming board containing cellulosic fibers, thermosetting binder and pinewood resin
CH516992A (en) * 1969-11-24 1971-12-31 Fahrni Peter Process for the production of single- or multilayer boards by pressing particles mixed with binder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189571A1 (en) * 2008-11-20 2010-05-26 Nichiha Corporation Environmentally-friendly wet process type hard fiberboard
CN111648157A (en) * 2020-05-25 2020-09-11 潍坊汇胜绝缘技术有限公司 Production process of medium-density insulating paperboard

Also Published As

Publication number Publication date
FR2250856B1 (en) 1978-06-09
NO744019L (en) 1975-06-02
IT1025472B (en) 1978-08-10
FR2250856A1 (en) 1975-06-06
SE391759B (en) 1977-02-28
AT351742B (en) 1979-08-10
CH586601A5 (en) 1977-04-15
NL7414523A (en) 1975-05-12
JPS5089486A (en) 1975-07-17
CA1122045A (en) 1982-04-20
ZA747154B (en) 1975-11-26
JPS5812150B2 (en) 1983-03-07
ATA885174A (en) 1979-01-15
DE2452170A1 (en) 1975-05-15
FI321974A (en) 1975-05-09
SE7315156L (en) 1975-05-09
BR7409379A (en) 1976-05-18
DE2452170C2 (en) 1986-11-13
ES431732A1 (en) 1977-05-16
DK578074A (en) 1975-06-30

Similar Documents

Publication Publication Date Title
US3431162A (en) Corrugated containerboard and the process of treating the same
US3393124A (en) Elongated supporting elements for the fourdrinier wire of a papermaking machine
US2286924A (en) Manufacture of sheet material
ES488729A0 (en) PROCEDURE FOR REGULATING THE SEDIMENTATION OF A LIQUID ON A MOVING SURFACE
GB1489407A (en) Hard board or medium density board and process for production thereof
US3598694A (en) Mechanical pulsating forming board
US4425188A (en) Forming shoes for the twin-wire former of a paper making machine
US2286942A (en) Method of manufacturing paper and/or board
FI67050C (en) SAETT ATT FRAMSTAELLA FIBERPLATTOR
US2408176A (en) Cover for the suction boxes of papermaking machines
US3477905A (en) Method and apparatus for manufacturing felted fibrous products
US4113555A (en) Hard board or medium density board, process for production thereof and means for practicizing the process
US3149028A (en) Paper making machine and process
US3042577A (en) Surface treatment of wet felts
US3303089A (en) Method of making wet felted board of fiber bundles and flakes
JPS61275495A (en) Production of filter material
US2895868A (en) Method of making resin impregnated paper
US2154201A (en) Manufacture of surfaced felted sheets
CN106723288A (en) A kind of low temperature does not burn reconstituted tobacco forming method and formation system
US2693740A (en) Apparatus for making shoe stiffeners
JPS5549124A (en) Production of filter paper
US2362450A (en) Method for making friction materials
JPH0579361B2 (en)
JP2550228B2 (en) Underlaying board for punching printed wiring board and its manufacturing method
US4168200A (en) Method for controlling caliper and edge and corner delamination of hardboard

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee